Oil hot water heater



Sept. 4, W H. B. MILLER ,9

OIL HOT WATER HEATER Filed 001;. 27, 1933 5 Sheets$heet l @pt. 24, 1935. B, MILLER 2,@]15,434

OIL HOT WATER HEATER Filed 001. 2'7, 1955 55118815-51'1866 2 Sept. 24, 193. H. B. MILLER OIL HOT WATER HEATER Filed Oct. 27, 1933 3 Sheets-Sheet 3 IN EN TOR.

A TTORNEYS.

Patented Sept. 24, 1935 UNITED STATES PATENT OFFIQE OIL HOT WATER HEATER Harry B. Miller, Syracuse, N. Y.

Application October 2'7, 1933, Serial No. 695,491

1 Claim. (01. 122-23) This invention relates to oil heaters, and particularly to heaters for heating hot water for domestic purposes, as the heating of water for kitchen use, for use in the laundry, or in the bathroom, and has for its object a heater whereby a maximum amount of heat generated at the burner is utilized to heat the water, or come in heat exchanging relation thereto.

It further has for its object, a burner by which the capacity, or the amount of water heated can be regulated. That is, the burner can be regulated to furnish hot water say, for ordinary kitchen use, and the capacity can be increased when comparatively great quantities of 'hot water are desired, as for use in the bathroom, or the laundry room.

It further has for its object, a particularly simple and economical construction of heater, and also a particularly simple construction of adjustable burner.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1' is an elevation of this burner.

' Figure 2 is an inverted plan view thereof.

Figures 3 and 4 are vertical, sectional views on a reduced scale, taken at a right angle to each other.

Figure 5 is a plan View, partly in'section, the dome or top being removed.

Figure 6 is a fragmentary, vertical, sectional view through one form of burner, and contiguous parts, taken on line 6-I5, Figure 7.

Figure 7 is a plan view of parts seen in Figure 6.

Figures 8 and 9 are respectively, a plan, and vertical, sectional view of another form of burner, Figure 9 being taken on line 9-4, Figure 8.

Figures 10 and 11 are views, similar to Figures 8 and 9, of a third modification of the burner, Figure 11 being taken on line I I -I I, Figure 10.

The body of the heater comprises a suitable base I, and a dome shaped water jacketed top 2 mounted on the base. The base is supported on suitable legs 3, and the top 2 is provided with a suitable water inlet 4 at its lower end, and outlet 5 at its top connected with a suitable cold water inlet, and hot water outlet pipes.

6 designates the burner mounted in the base I, it being here shown as having a laterally extending bracket I mounted on a bracket 8 on the wall of the base. In order to level the burner,

the bracket I is connected to the base at three points, as by three screws 9, II), and II, arranged at the points of the theoretical triangle. Two of these screws at the base of the triangle thread 7 through the bracket I and thrust against the 5 bracket 8, and the bracket I is formed with a fulcrum at I2 near the point of the triangle, The third screw II screws to clamp the bracket I with the screws 9 or Iii toward the bracket 8 after the screws have been adjusted. By means of this 10 joint, the burner can be accurately located and leveled.

An outlet conduit I5, for the products of combustion, is mounted in the base I, and extends upwardly into the dome shaped top along one wall 15 thereof. The upright portion of this conduit is open in one side toward the inner wall of the top 2, which closes said open side so that the products of combustion come in contact with a portion of the wall of the top 2 when passing 5:4) through the conduit I5. The conduit has a collar I6 at its lower end fitting a laterally extending opening in the side wall of the base I, this being connected to a chimney pipe, not shown. The collar I6 is clamped in position in any suit- 25 able manner. The upper end of the conduit opens into the upper portion of the top 2. Thus, the products of combustion, by reason of the down draft of the conduit I5, are distributed throughout the interior of the top 2, and come in inti- 3O ,which is controlled by an adjustable damper operable from the outside of the base I, the air inlet being located directly below the burner so that the air will distribute equally throughout the burner, and not cool the burner more on one side than the other.

I8 designates the air inlets in the bottom which are controlled by a sliding damper I9 operated by a rod or handle 20 extending to the outside 50 of the heater. A suitable baflie plate H is located about the damper to spread or distribute the air passing through the inlet.

The body I is also provided with a suitable door 22 for the purpose of giving access to the burner.

25 designates the base of the burner, this being a casting discoidal in general form and provided with a plurality of concentric annular outlets 26, 21, which are open at their upper sides, a central inlet 28 and with substantially radially extending passages connecting the inlet 28 with the annular outlets 26 and 21.

29 and 3!! are pairs of concentrically arranged shells mounted on the base, the shells of each pair being spaced apart from each other, and also the pairs being spaced apart. The shells of each pair 29 or 36 are arranged with the space between them alined with the annular outlet 26 or 21. The walls of the shells are perforated at 3|. The spaces 32 between the pairs of shells are annular air spaces, and also the space within the innermost shell is an air space. The radial passages are conduits, spaced apart so that the base of the burner is open between the annular outlets and the central inlet, and between the conduits for the passage of air. Suitable wicks 34 are located in the annular outlet. 7

35 and 36 designate the radial passages, and portions of the passages as 35 leading to the outer annular outlet 21 extend at a lower level than the passages 36 so that with a given adjustment for the flow of oil to the inlet, the oil will pass through the passages 36 to the annular outlet 26, and to the lower level of the passages 35. While with an adjustment permitting the greater flow of oil, the oil will also pass through the passages 35 to the outermost annular outlet 21. In this case, the inner ends of the passages 35 and 36 are at approximately the same level, at 36.

In Figures 8 and 9, a slightly different form oi! burner is shown in which the radial passages 43, leading to the outer annular outlet 21, open into a cup 4| in the central inlet 42 at a higher level than the passages leading to the inner annular outlet 26 so that the feed must be adjusted to a high level suflicient to let the oil feed through the passages 43 through the openings 44 in order to supply oil to the outer outlet annular channel 21.

In the form shown in Figures 10 and 11, the outlet passages 45, leading to the outer annular outlet 21, communicate at 46 with the inner annular outlet 26 at a higher level than the radial passages 41 communicate with the inner annular outlet 26.

In any of the forms of the burners, by reason of the adjustment of the rate of feed of the oil, the oil can be adjusted to flow to both annular outlets, or only to the inner annular outlet.

The central inlet 28 is connected to a suitable source of supply through a pipe 56 communicating at its inner end with a conduit 5| threaded into a nipple 52 which opens into the central inlet, and at its outer end into an oil chamber 53. The conduit 5|] has a suitable manually operable regulating valve 54 therein. The greater portion of the conduit is located within the base I, where it is preheated thus preheating the oil, when passing to the central inlet of the burner making the fuel more volatile or ignitable. The oil is supplied to the chamber 53 in any well known manner as from a container, or bottle 55 inverted, and suitably supported so that the oil flows therefrom into the chamber 53. This container has a valve 56 of the usual construction, which is normally closed and opened when the bottle is inverted into the chamber 53. The bottle is here shown as formed with an annular c01- lar 51 on the neck thereof which rests on a perforated collar 58 forming the top of the chamber 53, the neck of the bottle below the collar 51 fitting the central hole in the collar 58. As the neck fits the collar 58, and the collar 51 rests squarely on the collar 58, the bottle is held centered by spring prongs 59 engaging the periphery thereof. Either of the wicks can be ignited by means of a lighter through a hole in the dome shaped top which is normally closed by a plug 60.

In operation, when the wicks are ignited, the flame and the burning gases are confined between the shells 29 and 30, and the heat and the heated air supporting the combustion passes upwardly and circulates through the dome shaped top, and outwardly through the down draft outlet conduit so that the water in the jacketed dome shaped top is heated to a maximum with a minimum fuel consumption. Also, by reason of the 1 location of the air inlet, the air comes in contact with the burner evenly and does not cool any portion thereof more than another.

What I claim is:

An oil hot water heater comprising a base, a water jacketed dome-shaped top on the base, a burner in the base in position to heat the jacketed top, an outlet conduitfor the products of combustion extending downward from within the top and having a chimney connection below the jacketed top, the outlet conduit being open at its side toward the inner wall of the top, whereby the products of combustion passing through the outlet come in heat conducting contact with the wall of the jacket, the top having a cold water inlet in its side wall and a hot water outlet in its top wall, the outlet conduit for the products of combustion being arranged to confine the products of combustion against the portion of the wall of the top adjacent the cold water inlet, the greater portion of the inner wall of the dome-shaped top being exposed to the products of combustion before they pass through the outlet.

HARRY B. MILLER. 

